drivers/infiniband/hw/mthca/mthca_allocator.c: alloc->last left unchanged in mthca_alloc, which has impact on performance of function find_next_zero_bit in mthca_alloc. And the parenthesis and braces are removed in this version. Signed-off-by: kangning <kangning18z@xxxxxxxxx> --- Thanks for your review, and the parenthesis and braces have been removed in this version. drivers/infiniband/hw/mthca/mthca_allocator.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_allocator.c b/drivers/infiniband/hw/mthca/mthca_allocator.c index e81bb0fcd08e..1141695093e7 100644 --- a/drivers/infiniband/hw/mthca/mthca_allocator.c +++ b/drivers/infiniband/hw/mthca/mthca_allocator.c @@ -51,10 +51,9 @@ u32 mthca_alloc(struct mthca_alloc *alloc) } if (obj < alloc->max) { - alloc->last = (obj + 1); - if (alloc->last == alloc->max) { + alloc->last = obj + 1; + if (alloc->last == alloc->max) alloc->last = 0; - } set_bit(obj, alloc->table); obj |= alloc->top; } else -- 2.17.1